Life Science

Ever looked closely into someone’s eyes and noticed a vibrant ring of color encircling the pupil, distinct from the rest of the iris? That eye-catching trait is called central heterochromia, and it's more common than you might think.

By Grant Virellan

In the annals of neuroscience, few names are as memorable as Phineas Gage. His story remains a foundational example for both medical and psychology students, bridging medicine, psychology and history.

By Grant Virellan

Take a glance around any crowd and you’ll notice one thing: Noses come in all kinds of shapes and sizes. From sleek and straight to curved and prominent, the many types of noses play a big role in defining our unique facial features.

By Grant Virellan

Trees are one of nature’s most incredible designs, providing oxygen, shelter and even maple syrup! From towering evergreens to small flowering plants, the diversity of trees is truly mind-blowing.

By Talon Homer

Some types of mushrooms are delicious and nutritious, while others are deadly and should never be eaten. Learning how to tell them apart is essential for both food lovers and foragers; knowing the difference between edible mushrooms and poisonous mushrooms can literally be a matter of life and death.

By Grant Virellan

Also known as titan arum or Amorphophallus titanum, the corpse flower is known for its rare blooms. This unique plant sometimes takes seven to 10 years before reaching full bloom. When it finally does, plant enthusiasts rush to see this extraordinary occurrence up close.

By Ada Tseng

The woolly mammoth: an iconic extinct species that once roamed the vast arctic tundra during the last ice age. These colossal creatures disappeared thousands of years ago, but now, scientists are working to bring them back.

By Zach Taras

Neanderthals (Homo neanderthalensis) and humans (Homo sapiens) are two distinct species within the genus Homo. Neanderthals lived in Eurasia until about 40,000 years ago, alongside ancient humans.

By Ada Tseng

Content warning: This article discusses self-harm. If you or someone you know needs help, dial 988 or text SAVE to 741741.

By Ada Tseng

According to the National Institute of Mental Health and the American Psychiatric Association, more than 10 million adults in the United States are living with phobias or similar mental disorders.

By Mitch Ryan

North Node reveals your soul’s purpose and destiny. Learn how this astrological point shapes your growth, karmic lessons, and life’s ultimate path.

By HowStuffWorks

A massive crossover of cultures and ethnicities often increases genetic variability as children inherit dominant traits from their parents. Each facial feature, skin color, and trait tells a story of people's origins.

By Mitch Ryan

Suspect infidelity? Discover key signs he is cheating, from secretive behavior to emotional distance. Learn the red flags and what to do next.

By HowStuffWorks

Eye contact helps build trust and communication whether in business, friendships or romantic pursuits. Its importance in human socialization means that we're more likely to take note of eye color and wonder, "What is the most common eye color?"

By Talon Homer

Where does fear come from? American psychologist John Watson wanted to find out — so, in the name of science, he tried to instill specific new fears into a baby boy he called Albert.

By Kimberly Olson

The natural world is a finely-tuned balance of biotic (living) and abiotic (nonliving) components that shape our environments. Various biotic factors directly affect processes like population growth, plant growth and nutrient cycling.

By Ada Tseng

Stanley Milgram's experiment was a controversial test of human psychology that shed light on the limitations of free will and obedience to authority.

By Mitch Ryan

Discover what it means to be a Manifesting Generator in Human Design. Learn about their traits, energy, and success strategies for thriving in life and relationships.

By HowStuffWorks

Have you ever wondered what the largest living organism on Earth is? Well, you might be surprised to learn that it's not a giant blue whale or a sequoia tree; it's a fungus!

By Mack Hayden

Psychologists who study the human personality often refer to the Big Five personality traits, a model that separates general characteristics into five categories: openness, conscientiousness, extraversion, agreeableness and Neuroticism. This psychological model is also known by the acronyms, OCEAN and CANOE.

By Ada Tseng

We're about to dive into the world of parasitology, taking a close look at one of the most common parasitic worms infecting humans: Ascaris lumbricoides. This large roundworm is responsible for a type of intestinal nematode infection that affects millions of people worldwide, especially in areas with poor sanitation.

By Mack Hayden

If you're studying genetics, molecular biology or a related field, odds are good that you will need to learn how to read a codon chart (aka codon table) to better understand the genetic code.

By Marie Look

Understanding the major differences between indica vs. sativa strains of marijuana is important for cannabis use due to the different effects they incur on the human body and mind. Although both the indica strain and sativa strain can have medical benefits, they are used for different purposes.

By Karina Ryan

According to the Centers for Disease Control and Prevention, the average height in the United States is 5 feet, 9 inches (1.75 meters) for adult men and 5 feet, 3.5 inches (1.61 meters) for adult women. But some people can reach heights upwards of 7 or 8 feet (2.1 to 2.4 meters)!

By Sascha Bos

People talk to their pets every day: offering praise when they're good, reassurance when they're confused and affection when they're cuddling. We also speak to animals when they misbehave. "Why did you do that?" someone might ask their dog. Or we might scold the cat - "Don't touch that!" - as we move a family heirloom across the room.

By Jon Garthoff